Plastic frame polarized UV Protection Coating coating LensCovers are UV400, 100% UVA and UVB and polarized for your eye protection! Only LensCovers have been certified to meet ISO 12312-1:2013 quality standards. Available upon request. LensCovers are available in Extra Small, Small, Medium, Large Slim and Large. Each of the 5 LensCovers sizes are listed separately on Amazon. Each listing has an assortment of stylish frame colors and lenses.